U.S. federal trademark · Serial No. 74363529 · Reg. No. 523756
measurement and control instruments and apparatus for the metallurgical industry; namely, immersion probes and related measurement instruments sold as a unit therewith in the nature of indicators and analytical instruments for the analysis of molten metals; immersion probes and measuring instruments; namely, sampling probes to determine the gas content, in particular the oxygen and nitrogen level in molten metal
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